#include <iostream>
#include <unistd.h>
#include <cstring>

using namespace std;

int main()
{
    // system call
    const char* str1 = "woqu\n";
    write(1, str1, strlen(str1));

    // C call
    const char* str2 = "jiarenmen\n";
    fprintf(stdout, "%s", str2);

    const char* str = "hahaha\n";
    fwrite(str, sizeof(str[0]), strlen(str), stdout);

    fork();
    return 0;
}


